James e



(No Model.)

J. E. GAUSE.

STEAM WHISTLE.

. N0. 286L420. Patented Oct. 9, 1883.

& a

E T J O WITNESSES: INVENTOR; A

7 AJ7M BY- ATTORNEYS.

I UNITED STATES PATENa Enron.

JAMES EeAusE, on BROWNSVILLE, TENNESSEE.

STEAM-WHISTLE SPECIFICATION forming part of Letters Patent No. 286,420, dated October 9, 1883.

Application filed April 10, 1883. (X model.)

To all? whom it may concern.-

Be it known that I, JAMES E. GAUSE, of Brownsvilla in the county of Haywood and State of Tennessee, have invented a new and Improved Steam-Whistle, of which the following is a full, clear, and exact description. My invention consists in the combination, with the bell of a steam-whistle, of a movable valve fitted for operation by the engineer to change the tone of the whistle; and it further consists in means for adjusting the bell to the steam-outlet, so as to secure a clear tone, as hereinafter described and claimed.

Reference is to be had to the accompanying drawing, which is a sectional elevation of a whistle with my improvement. A is the bell, sustained upon a hollow support, a, which is screwed into the cone inside of the cup G, which cone has outlets for escape of steam. The upper endof the support a is screw-threaded, to receive the bell, so that the latter maybe moved up and down to adjust its lower edge to and from the steam-orifice, so that a clear. tone may be secured. C is the adjustable valve contained within the bell and connected upon a red, I), through slots in the support a. The rod' passes up through the hollow support a, and is connected at its upper end to a crank levef, d, so that by movement of the crank-lever the valve may be moved back and forth in the bell, and the tone of the whistle thus changed. Upon the arm 0, that supports the crank-lever d, is pivoted a second leverff, one end of which is connected to the lever (71, while the other end connects by a-rod, g, to the upper end of the bell, so that when the crank-lever d is moved to change the tone of the whistle the bell will be at the same time adjusted to and from the steam-aperture, in order that the tone of the whistle shall be clear in any position of the valve 0. The lever 1 may, however, be dispensed with, and the bell fixed at any point by means of the nuts lot, or by having the bell threaded and screwed on. By this construction the alarm given by the whistle can be varied readily at the will of the engineer. It is available for cattle-alarm, or for giving peculiar signals for other purposes.

I am aware that it is not new to use a sliding sleeve on the fixed bell of a steam -whistle to produce varying sounds, or to employ a piston or valvemovable up and down in the fixed bell for the same purpose; but

1. The combination, with the piston or valve 0, hollow slotted support a, and the thereto attached bell A, of the rod b, attached to said valve, and the lever (I, connected by a joint with the end of said rod, whereby the valve is always centered by the rod and hollow sup-.

Witnesses:

S. F. THOMAS, J AS. A. DUPREE.

What I do claim as new and of my invention 

